Benchmark 1 - Item 205379 Question 5 of 30
The perimeter of quadrilateral JKLM is 90 centimeters. Which is the length of side KL?
Kn
2n-12
n +7
3n+ 4
CLEAR
SUBMIT
16.5 cm
15.8 cm
15 cm
13 cm

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.